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Thermo Fisher Scientific
TMO

Overview Fund Activity

2,536 hedge funds and large institutions have $165B invested in Thermo Fisher Scientific in 2025 Q1 according to their latest regulatory filings, with 155 funds opening new positions, 1,020 increasing their positions, 992 reducing their positions, and 157 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
2,536
Holders Change
-45
Holders Change %
-1.74%
% of All Funds
34.44%
Holding in Top 10
83
Holding in Top 10 Change
+11
Holding in Top 10 Change %
+15.28%
% of All Funds
1.13%
New
155
Increased
1,020
Reduced
992
Closed
157
Calls
$961M
Puts
$1.08B
Net Calls
-$119M
Net Calls Change
+$261M

Top Buyers

1
Capital World Investors
Capital World Investors
California
+$812M
2
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
+$607M
3
DZ Bank
DZ Bank
Germany
+$293M
4
Franklin Resources
Franklin Resources
California
+$240M
5
SP
Sarasin & Partners
United Kingdom
+$187M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
-$843M
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$802M
3
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$568M
4
ATO
Alecta Tjanstepension Omsesidigt
Sweden
-$214M
5
Impax Asset Management Group
Impax Asset Management Group
United Kingdom
-$212M
Name Holding Trade Value Shares
Change 		Shares
Change %
PCM
2526
Perritt Capital Management
Illinois
$1.49K +$1.49K +3 New
WTFG
2527
Wood Tarver Financial Group
Idaho
$996 – – –
KB
2528
Kimelman & Baird
New York
$996 – – –
DWM
2529
Dogwood Wealth Management
Kansas
$995 +$995 +2 New
JAM
2530
JCIC Asset Management
Ontario, Canada
$995 +$995 +2 New
BMC
2531
Bear Mountain Capital
Washington
$856 +$856 +2 New
SJIM
2532
St. Johns Investment Management
Florida
$500 – – –
IRC
2533
Investors Research Corp
Georgia
$498 – – –
RCM
2534
Richardson Capital Management
Wisconsin
$498 +$498 +1 New
WOC
2535
West Oak Capital
California
$473 -$622 -125 -57%
Norges Bank
2536
Norges Bank
Norway
– -$3.15B -6,054,541 Closed
TP
2537
Third Point
New York
– -$182M -350,000 Closed
Marshall Wace
2538
Marshall Wace
United Kingdom
– -$172M -330,321 Closed
ICP
2539
Ilex Capital Partners
United Kingdom
– -$57M -109,534 Closed
MSE
2540
MUFG Securities EMEA
United Kingdom
– -$45.3M -86,999 Closed
EAM
2541
Empirical Asset Management
Massachusetts
– -$158K -66,863 Closed
OCM
2542
Oribel Capital Management
New York
– -$24.7M -47,400 Closed
SSA
2543
Schonfeld Strategic Advisors
New York
– -$16.2M -31,192 Closed
CPIM
2544
Coalescence Partners Investment Management
New York
– -$14.6M -28,072 Closed
AC
2545
Armistice Capital
New York
– -$10.4M -20,044 Closed
GJCM
2546
Grand Jean Capital Management
California
– -$9.95M -19,134 Closed
AHB
2547
Abner Herrman & Brock
New Jersey
– -$9.13M -17,554 Closed
CSS
2548
Cubist Systematic Strategies
Connecticut
– -$7.93M -15,252 Closed
WP
2549
Woodline Partners
California
– -$6.09M -11,699 Closed
PGDP
2550
Pragma Gestao de Patrimonio
Brazil
– -$5.72M -11,000 Closed
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102
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